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Message-ID: <1400608550.4912.48.camel@x220> Date: Tue, 20 May 2014 19:55:50 +0200 From: Paul Bolle <pebolle@...cali.nl> To: Benjamin Herrenschmidt <benh@...nel.crashing.org>, Paul Mackerras <paulus@...ba.org> Cc: linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org Subject: [PATCH] powerpc: remove checks for CONFIG_BOOK3E_MMU_TLB_STATS Three checks for CONFIG_BOOK3E_MMU_TLB_STATS were added in v2.6.32. But the related Kconfig symbol was never added. These checks have always evaluated to false. Remove them. Signed-off-by: Paul Bolle <pebolle@...cali.nl> --- Untested. A second order cleanup is now possible (ie, TLB_MISS_PROLOG_STATS and friends are, well, defined away). Perhaps it is preferable to include that cleanup in this patch. arch/powerpc/include/asm/exception-64e.h | 38 -------------------------------- arch/powerpc/mm/tlb_low_64e.S | 10 --------- 2 files changed, 48 deletions(-) diff --git a/arch/powerpc/include/asm/exception-64e.h b/arch/powerpc/include/asm/exception-64e.h index a563d9afd179..74004771baed 100644 --- a/arch/powerpc/include/asm/exception-64e.h +++ b/arch/powerpc/include/asm/exception-64e.h @@ -69,14 +69,7 @@ #define EX_TLB_ESR ( 9 * 8) /* Level 0 and 2 only */ #define EX_TLB_SRR0 (10 * 8) #define EX_TLB_SRR1 (11 * 8) -#ifdef CONFIG_BOOK3E_MMU_TLB_STATS -#define EX_TLB_R8 (12 * 8) -#define EX_TLB_R9 (13 * 8) -#define EX_TLB_LR (14 * 8) -#define EX_TLB_SIZE (15 * 8) -#else #define EX_TLB_SIZE (12 * 8) -#endif #define START_EXCEPTION(label) \ .globl exc_##label##_book3e; \ @@ -161,36 +154,6 @@ exc_##label##_book3e: addi r11,r13,PACA_EXTLB; \ TLB_MISS_RESTORE(r11) -#ifdef CONFIG_BOOK3E_MMU_TLB_STATS -#define TLB_MISS_PROLOG_STATS \ - mflr r10; \ - std r8,EX_TLB_R8(r12); \ - std r9,EX_TLB_R9(r12); \ - std r10,EX_TLB_LR(r12); -#define TLB_MISS_RESTORE_STATS \ - ld r16,EX_TLB_LR(r12); \ - ld r9,EX_TLB_R9(r12); \ - ld r8,EX_TLB_R8(r12); \ - mtlr r16; -#define TLB_MISS_STATS_D(name) \ - addi r9,r13,MMSTAT_DSTATS+name; \ - bl .tlb_stat_inc; -#define TLB_MISS_STATS_I(name) \ - addi r9,r13,MMSTAT_ISTATS+name; \ - bl .tlb_stat_inc; -#define TLB_MISS_STATS_X(name) \ - ld r8,PACA_EXTLB+EX_TLB_ESR(r13); \ - cmpdi cr2,r8,-1; \ - beq cr2,61f; \ - addi r9,r13,MMSTAT_DSTATS+name; \ - b 62f; \ -61: addi r9,r13,MMSTAT_ISTATS+name; \ -62: bl .tlb_stat_inc; -#define TLB_MISS_STATS_SAVE_INFO \ - std r14,EX_TLB_ESR(r12); /* save ESR */ -#define TLB_MISS_STATS_SAVE_INFO_BOLTED \ - std r14,PACA_EXTLB+EX_TLB_ESR(r13); /* save ESR */ -#else #define TLB_MISS_PROLOG_STATS #define TLB_MISS_RESTORE_STATS #define TLB_MISS_PROLOG_STATS_BOLTED @@ -201,7 +164,6 @@ exc_##label##_book3e: #define TLB_MISS_STATS_Y(name) #define TLB_MISS_STATS_SAVE_INFO #define TLB_MISS_STATS_SAVE_INFO_BOLTED -#endif #define SET_IVOR(vector_number, vector_offset) \ li r3,vector_offset@l; \ diff --git a/arch/powerpc/mm/tlb_low_64e.S b/arch/powerpc/mm/tlb_low_64e.S index 356e8b41fb09..7e25fe472801 100644 --- a/arch/powerpc/mm/tlb_low_64e.S +++ b/arch/powerpc/mm/tlb_low_64e.S @@ -1159,13 +1159,3 @@ tlb_load_linear_fault: b exc_data_storage_book3e 1: TLB_MISS_EPILOG_ERROR_SPECIAL b exc_instruction_storage_book3e - - -#ifdef CONFIG_BOOK3E_MMU_TLB_STATS -.tlb_stat_inc: -1: ldarx r8,0,r9 - addi r8,r8,1 - stdcx. r8,0,r9 - bne- 1b - blr -#endif -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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